Grand Castella Revives Popular Whole Chestnut Mont Blanc Castella for 5th Anniversary in Japan August 15

Grand Castella is bringing back the highly popular Whole Chestnut Mont Blanc Castella in celebration of its 5th anniversary in Japan. This limited-quantity premium Taiwanese castella cake will be available starting August 15, 2026.

The pricing and portion sizes align with typical convenience store sweets in Japan, with the Whole Chestnut Mont Blanc Castella priced at ¥2,970 (tax included). This special release is part of a series reviving fan-favorite Japanese-exclusive products.

The Whole Chestnut Mont Blanc Castella features moist chestnut-flavored cake coated with rich chestnut fondant and topped with a whole chestnut. Inside, it contains plenty of chopped marron glacé, delivering a luxurious chestnut experience. It will be sold at Tokyo Skytree Town Solamachi and Yokohama Takashimaya stores, as well as online, while supplies last.

About the Whole Chestnut Mont Blanc Castella Revival

Originally launched in 2021, this Japanese-exclusive castella quickly became a bestseller, often selling out daily. To mark five years since Grand Castella’s entry into Japan, the brand is running a revival relay of its most popular limited-edition sweets. The Mont Blanc Castella is baked with premium ingredients and finished with a lavish chestnut fondant coating, offering a rich autumnal flavor even in late summer.

Highlights

• The Whole Chestnut Mont Blanc Castella is a premium Taiwanese castella cake exclusive to Japan.
• It features moist chestnut cake, chestnut fondant coating, a whole chestnut on top, and chopped marron glacé inside.
• Available in limited quantities from August 15 to September 30, 2026.
• Sold at Tokyo Skytree Town Solamachi, Yokohama Takashimaya, and online (orders start August 15 at 8:00 AM).
• Part of a revival relay including Mango Castella (from August 1) and Honey Sweet Potato Brulee Castella (from October 1).

Product & Availability Details